169 lines
7.4 KiB
Plaintext
169 lines
7.4 KiB
Plaintext
# ==============================================================================
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# ARQUIVO: /etc/nginx/sites-available/monitoramento.itguys.com.br.conf
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# AUTOR: Gemini (Especialista NGINX)
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# DATA: 07/10/2025 (Corrigido para herança de proxy headers)
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#
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# CONTEXTO:
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# Configuração consolidada e segura para Proxy Reverso do Grafana.
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# Segue a estrutura centralizada: SSL/TLS e Headers diretos no arquivo.
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#
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# UPSTREAM: 172.16.254.13:3000
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# ==============================================================================
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# ------------------------------------------------------------------------------
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# UPSTREAM: Servidor Grafana
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# ------------------------------------------------------------------------------
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upstream grafana_backend {
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server 172.16.254.13:3000;
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keepalive 64;
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}
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# ------------------------------------------------------------------------------
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# BLOCO 1: Redirecionamento de HTTP (porta 80) para HTTPS
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# ------------------------------------------------------------------------------
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server {
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listen 80;
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listen [::]:80;
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server_name monitoramento.itguys.com.br;
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# Aplica o rate limiting (zona global_limit deve estar em nginx.conf)
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limit_req zone=global_limit burst=20 nodelay;
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# Responde ao desafio do Let's Encrypt
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location /.well-known/acme-challenge/ {
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root /var/www/html;
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}
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# Redireciona todo o resto para HTTPS
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location / {
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return 301 https://$host$request_uri;
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}
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}
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# ------------------------------------------------------------------------------
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# BLOCO 2: Servidor Principal - Proxy Reverso para Grafana (HTTPS)
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# ------------------------------------------------------------------------------
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server {
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listen 443 ssl http2;
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listen [::]:443 ssl http2;
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server_name monitoramento.itguys.com.br;
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# ============================================================================
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# LOGS, LIMITAÇÃO E SEGURANÇA BÁSICA
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# ============================================================================
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client_max_body_size 10M;
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access_log /var/log/nginx/monitoramento.itguys.com.br.access.log detailed_proxy;
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error_log /var/log/nginx/monitoramento.itguys.com.br.error.log warn;
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access_log /var/log/nginx/monitoramento.itguys.com.br.bad-bot.log suspicious_bot if=$is_bad_bot;
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# Módulo de Segurança Global (Bloqueia bots e URIs suspeitas de nginx.conf)
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if ($block_request) {
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return 404;
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}
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# Rate Limiting (zona global_limit deve estar em nginx.conf)
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limit_req zone=global_limit burst=100 nodelay;
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# ============================================================================
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# CONFIGURAÇÕES DE SSL/TLS (Hardening)
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# ============================================================================
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ssl_certificate /etc/letsencrypt/live/monitoramento.itguys.com.br/fullchain.pem;
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ssl_certificate_key /etc/letsencrypt/live/monitoramento.itguys.com.br/privkey.pem;
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ssl_protocols TLSv1.3 TLSv1.2;
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ssl_ciphers 'TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305';
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ssl_prefer_server_ciphers on;
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ssl_ecdh_curve X25519:secp256r1:secp384r1;
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ssl_session_timeout 1d;
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ssl_dhparam /etc/nginx/dhparam.pem;
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ssl_session_tickets off;
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# OCSP Stapling
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ssl_stapling on;
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ssl_stapling_verify on;
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ssl_trusted_certificate /etc/letsencrypt/live/monitoramento.itguys.com.br/fullchain.pem;
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resolver 8.8.8.8 8.8.4.4 valid=300s;
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resolver_timeout 5s;
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# ============================================================================
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# HEADERS DE SEGURANÇA
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# ============================================================================
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add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
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add_header X-Content-Type-Options "nosniff" always;
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add_header X-Frame-Options "SAMEORIGIN" always;
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add_header Referrer-Policy "no-referrer" always;
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add_header Permissions-Policy "geolocation=(), microphone=(), camera=(), payment=()" always;
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proxy_hide_header "X-Content-Type-Options";
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proxy_hide_header "X-Frame-Options";
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proxy_hide_header "Content-Security-Policy";
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# ============================================================================
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# COMPRESSÃO
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# ============================================================================
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brotli on;
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brotli_comp_level 6;
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brotli_min_length 256;
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brotli_types application/atom+xml application/javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-opentype application/x-font-truetype application/x-font-ttf application/x-javascript application/xhtml+xml application/xml font/eot font/opentype font/otf font/truetype image/svg+xml image/x-icon text/css text/javascript text/plain text/xml;
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gzip on;
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gzip_vary on;
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gzip_proxied any;
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gzip_comp_level 6;
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gzip_min_length 256;
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gzip_types application/atom+xml application/javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-opentype application/x-font-truetype application/x-font-ttf application/x-javascript application/xhtml+xml application/xml font/eot font/opentype font/otf font/truetype image/svg+xml image/x-icon text/css text/javascript text/plain text/xml;
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# ----------------------------------------------------------------------------
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# ROTAS ESPECÍFICAS
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# ----------------------------------------------------------------------------
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# 1. Rota para assets estáticos do Grafana (/public/) - CACHE AGRESSIVO
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location /public/ {
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# --- BLOCO DE PROXY PADRÃO ---
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_http_version 1.1;
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proxy_pass http://grafana_backend;
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# Para assets estáticos, o buffer é benéfico
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proxy_buffering on;
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proxy_request_buffering on;
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# Headers de Cache
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expires 7d;
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add_header Cache-Control "public, immutable";
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}
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# 2. Rota para WebSockets do Grafana (/api/live/) - SEM CACHE, LONGO TIMEOUT
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location /api/live/ {
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# --- BLOCO DE PROXY PADRÃO ---
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_http_version 1.1;
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proxy_pass http://grafana_backend;
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proxy_buffering off;
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proxy_request_buffering off;
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# --- HEADERS ESPECÍFICOS PARA WEBSOCKETS ---
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection "upgrade";
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proxy_read_timeout 86400s; # Timeout longo (24h)
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}
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# 3. Rota principal para a aplicação (SEM CACHE)
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location / {
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# --- BLOCO DE PROXY PADRÃO ---
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_http_version 1.1;
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proxy_pass http://grafana_backend;
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proxy_buffering off; # Essencial para interatividade
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proxy_request_buffering off;
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proxy_read_timeout 90s;
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proxy_send_timeout 90s;
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}
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}
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